☰

Camamba Hook Into OnMessage

allows to add handlers for onMessage requests

当前为 2021-03-22 提交的版本，查看 最新版本。

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/423665/913862/Camamba%20Hook%20Into%20OnMessage.js 

  1. // ==UserScript==
  2. // @name            Camamba Hook Into OnMessage
  3. // @namespace       dannysaurus.camamba
  4. // @version         0.1
  5. // @description     allows to add handlers for onMessage requests
  6. // @license         MIT License
  7. // @include         https://www.camamba.com/chat/
  8. // @include         https://www.de.camamba.com/chat/
  9. // ==/UserScript==
  10.  
  11. /* jslint esnext: true */
  12. /* global me, camData, rooms, blockList, friendList, friendRequests, adminMessages, jsLang, byId, myRooms, knownUsers, activeRoom, selectedUser, settings */
  13.  
  14. // === overwrite relevant property to add handler before onMessage is going to be processed
  15. const onMessageHandlers = {
  16.     // Keepalive response
  17.     pong: null,
  18.     // Chat message
  19.     roomChat: null,
  20.     // Private message
  21.     'private': null,
  22.     // Control messages
  23.     control: null,
  24.     // User Joined Room
  25.     joined: null,
  26.     // User left
  27.     left: null,
  28.     // User disconnected from server
  29.     disco: null,
  30.     // Room User List
  31.     roomList: null,
  32.     // Room access denied
  33.     denied: null,
  34.     // Private room ready
  35.     privateCreate: null,
  36.     // Owner of a private room left the chat
  37.     ownerLeft: null,
  38.     // User joins my room
  39.     joinRequest: null,
  40.     // Room user count
  41.     roomStats: null,
  42.     // Private room data
  43.     privStats:  null,
  44.     // Image Upload
  45.     file: null,
  46.     // Cam published
  47.     camOn: null,
  48.     // Cam turned off
  49.     camOff: null,
  50.     // AFK mark
  51.     afk: null,
  52.     // Second login overrides
  53.     duplicate: null,
  54.     // Admin messages
  55.     admin: null,
  56.     // Admin ban
  57.     ban: null,
  58.     // Connected (control layer)
  59.     connectConfirm: null,
  60. };
  61.  
  62. // === overwrite relevant property to add handler after onMessage got processed
  63. const postMessageHandlers = {
  64.     // Keepalive response
  65.     pong: null,
  66.     // Chat message
  67.     roomChat: null,
  68.     // Private message
  69.     'private': null,
  70.     // Control messages
  71.     control: null,
  72.     // User Joined Room
  73.     joined: null,
  74.     // User left
  75.     left: null,
  76.     // User disconnected from server
  77.     disco: null,
  78.     // Room User List
  79.     roomList: null,
  80.     // Room access denied
  81.     denied: null,
  82.     // Private room ready
  83.     privateCreate: null,
  84.     // Owner of a private room left the chat
  85.     ownerLeft: null,
  86.     // User joins my room
  87.     joinRequest: null,
  88.     // Room user count
  89.     roomStats: null,
  90.     // Private room data
  91.     privStats:  null,
  92.     // Image Upload
  93.     file: null,
  94.     // Cam published
  95.     camOn: null,
  96.     // Cam turned off
  97.     camOff: null,
  98.     // AFK mark
  99.     afk: null,
  100.     // Second login overrides
  101.     duplicate: null,
  102.     // Admin messages
  103.     admin: null,
  104.     // Admin ban
  105.     ban: null,
  106.     // Connected (control layer)
  107.     connectConfirm: null,
  108. };
  109.  
  110. // perform hook
  111. const hookIntoOnMessage = function({
  112.     onMessage = (m => true),
  113.     postMessage = (m => {}),
  114.     timeOutRetryMillis = 350
  115. } = {}) {
  116.     /* eslint-disable no-undef */
  117.     if (!ws || !ws.onmessage) {
  118.         // retry
  119.         setTimeout(() => {
  120.             hookIntoOnMessage({ onMessage, postMessage, timeOutRetryMillis });
  121.         }, timeOutRetryMillis);
  122.  
  123.         return;
  124.     }
  125.  
  126.     // perform hook
  127.     const originalOnMessage = ws.onmessage;
  128.  
  129.     ws.onmessage = (message) => {
  130.         const resultOnMessage = onMessage(message);
  131.  
  132.         if (resultOnMessage) {
  133.             originalOnMessage(message);
  134.             postMessage(message);
  135.         }
  136.     };
  137.     /* eslint-enable no-undef */
  138. };
  139.  
  140. hookIntoOnMessage({
  141.     onMessage: (message) => {
  142.         const data = JSON.parse(message.data);
  143.  
  144.         const handler = onMessageHandlers[data.command];
  145.         if (typeof handler === 'function') {
  146.             const result = handler(data);
  147.             
  148.             message.data = JSON.stringify(data);
  149.             return result;
  150.         }
  151.         
  152.         return true;
  153.     },
  154.     postMessage: (message) => {
  155.         const data = JSON.parse(message.data);
  156.  
  157.         let handler = postMessageHandlers[data.command];
  158.         if (typeof handler === 'function') {
  159.             handler(data);
  160.         }
  161.     }
  162. });